18561488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{401}}^1$

素因数の和:683

約数の個数: 40

約数和(自身を含む): 39479616

約数和(自身を除く): 20918128

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 263, 401, 526, 802, 1052, 1604, 2104, 2893, 3208, 4208, 4411, 5786, 6416, 8822, 11572, 17644, 23144, 35288, 46288, 70576, 105463, 210926, 421852, 843704, 1160093, 1687408, 2320186, 4640372, 9280744, 18561488]

約数ペア:

[(1, 18561488), (2, 9280744), (4, 4640372), (8, 2320186), (11, 1687408), (16, 1160093), (22, 843704), (44, 421852), (88, 210926), (176, 105463), (263, 70576), (401, 46288), (526, 35288), (802, 23144), (1052, 17644), (1604, 11572), (2104, 8822), (2893, 6416), (3208, 5786), (4208, 4411)]